Before measuring something, it is important to know which unit to use. Estimating its approximate size by comparing it with a more familiar object can help. In order to find a suitable unit of measure ...

The U.S. Food and Drug Administration (FDA) recently released guidance to assist food and dietary supplement companies on how to convert the previous units of measure for folate, niacin, vitamin A, ...

Units from the metric system can be used to describe the mass, volume or length of an object. Mass is measured in grams (g) and kilograms (kg). Volume is measured in millilitres (ml) and litres (l).